Cracked battery. Help!

Ok I went to move my Deka earlier for my new install and when I picked up the battery I noticed a spot on my carpet. Well I tipped over the battery and noticed this hairline crack in my battery case. I'm assuming the spot of melted carpet is from the gel inside the battery. What should I do about it? I bought the battery from a member on here. Any chance of it having a warranty? Here's pics from everything.